Audio Control EQX Owner'S Manual Download Page 12 | Manualshive

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Audio Control EQX Owner'S Manual Download Page 12

Concert Series Owner’s Manual

Figure 4. Wiring diagram shows an EQX in a
single-amplifier system using a deck and The
EPICENTER.

Figure 5 (on opposite page). Wiring diagram shows
an EQX in a bi-amplified system with an Model 11
Amplified Center Channel Image Processor.

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Summary of Contents for EQX

Page 1: ...EQUALIZER CROSSOVER LEVEL MATCHER OWNER S MANUAL 22410 70th Ave W Mountlake Terrace WA 98043 Phone 425 775 8461 Fax 425 778 3166 www audiocontrol com Concert Series making good stereo sound better ...

Page 2: ...module already installed and the Programmable Frequency Match filter module set at 33 Hz see page 18 to change these For information on other system applications or related topics please read further Table of Contents Introduction 1 Description 4 Installation 8 Amplifier Bridging 16 Making Your Own Crossover and Programmable Frequency Match Modules 18 Troubleshooting 21 Warranty 23 Specifications ...

Page 3: ...ect many glowing reviews for its innovative autosound products We have learned a great deal about cars stereos and acoustics over the years All of this has been poured into the new EQX to give you the tools to make your car stereo the envy of all your pals We design test and build each EQX Equalizer Crossover right here in the misty rain forests1 of the Pacific Northwest When you look inside the r...

Page 4: ...aren t our attorneys Linkwitz and Riley are a couple of smart guys who designed a very effective fourth order filter for bi amplified systems You hear it each time you see a movie at your local THX theater we like it If you want to know more about this exotic filter check out our Technical Paper 102 appropriately titled Crossover Networks from A to Linkwitz Riley ä Level Matching True standards in...

Page 5: ...nal system installation Your AudioControl dealer has the training and tools to take care of the job quickly and without the anxiety of drilling holes in your car If you are a dyed in the wool do it yourselfer this manual should provide all the info you need to successfully make music with the EQX The Most Important Instruction Of All FILL OUT AND SEND IN THE WARRANTY CARD Also save the invoice or ...

Page 6: ...Concert Series Owner s Manual Figure 1 Top panel layout for EQX Equalizer Crossover Level Matcher 4 ...

Page 7: ...ts takes the guess work out of creating the best sounding system by matching autosound components to your vehicle For more information see page 22 Full Range High Pass or Low Pass outputs The top panel also includes several indicators to confirm power and help set output levels ä HALF OCTAVE BASS EQUALIZER six half octave bass equalizer controls for each channel with frequency centers at 31 5 45 6...

Page 8: ...r outputs from a deck or factory stereo L R L R L R L R Normal Invert Out 12 ä EQUALIZE IN OUT Press in to engage the equalizer settings on your EQX Series II ä LINE LEVEL INPUT RCA jacks for connec tion of low level stereo signals from a head unit ä FULL RANGE OUTPUT RCA jacks for connection of all frequencies to inputs of an amplifier 6 HighLevel I n p u t L R E q u a l i z e I n Out L i n eL e ...

Page 9: ...dy 3 pin plug for power connection of vehicle s Remote Turn On 12 Volts and Power Ground Crossover Programmable Frequency Match Modules and Ground Isolation Selector Inside The crossover and PFM filter modules as well as the ground isolation selector are internal and can be accessed by removing the four top screws and lifting the top panel off the base refer to Figure 8 on page 20 Be sure to turn ...

Page 10: ...ing on page 16 Installation Precautions ä Do not mount the EQX Equalizer Cross over Level Matcher where it will be exposed to outside elements or extreme tempera tures Avoid areas that are subject to extreme road vibration or shock The front bumper is definitely out of bounds ä Select an installation site that provides short cable runs for minimum pick up of engine noise and RFI radio frequency in...

Page 11: ...Figure 3 Wiring diagram for EQX in a bi amplified system 9 Installation ...

Page 12: ...gure 4 Wiring diagram shows an EQX in a single amplifier system using a deck and The EPICENTER Figure 5 on opposite page Wiring diagram shows an EQX in a bi amplified system with an Model 11 Amplified Center Channel Image Processor 10 ...

Page 13: ...11 Installation ...

Page 14: ...ed location 4 Secure the EQX with self tapping screws Connecting the EQX 1 With ignition off disconnect the negative lead from the vehicle s battery 2 Connect 12 Vdc and Ground from the vehicle s electrical system to the correspond ing 12 and GROUND terminals on the EQX Also connect the Remote turn on signal from the head unit to the REMOTE terminal 3 Connect a set of RCA cables from the head unit...

Page 15: ...me control on the head unit or radio to maximum level NOTE Since the outputs are not connected you won t hear any sound at this point 3 Adjust the INPUT GAIN control until the yellow INPUT MAXIMIZED LED starts to flicker Now back the control off until the LED just goes out 4 Next start the track over so that you are referencing the same musical information as in step 3 Adjust the OUTPUT LEVEL unti...

Page 16: ...ct frequency control or adjust the INPUT GAIN controls to reduce the overall gain Adjusting the EQX cont d NOTE Consult the amplifier owner s manual for information on setting its input sensitivity If adjustable set each amplifier to accept a signal between 1 0 and 2 0 volts 1000 and 2000 mV This may be a minimum setting on your amp Don t worry the EQX can still drive it to full volume If your amp...

Page 17: ... amplifier installations Balancing a system by ear should be per formed as fine tuning after using a Real Time Analyzer since our ears adapt very quickly to any new frequency adjustments In fact if you listen to a badly adjusted system long enough it will actually start sounding pretty good Only later when your hearing refreshes and your buddies come to audition your new system will you realize ho...

Page 18: ...180 degrees out of phase In other words one channel supplies the positive half of the signal and the other the negative side The voltages are summed at the subwoofer for a fourfold increase in power as demonstrated by the following calculations The formula for output power of an amplifier single channel is Peak Voltage x 707 2 Load impedance ohms For a normal amplifier rated at 25 watts per channe...

Page 19: ... almost always reduce the available current Therefore the realized power output will generally be less than four times the amplifier s power output Although bridging is the best way to maximize bass output check the amplifier s manual to make sure it is capable of driving a 2 ohm load and that it is not already bridged inter nally ...

Page 20: ...uency Match Modules A crossover network is a circuit that divides the bandwidth of an audio signal into two or more frequency bands as shown here Crossover Incorporated High Sounds Low Sounds Input Figure 7 Here we see Mr Crossover busy dividing music into high and low bands 18 ...

Page 21: ...equency specifications to determine the optimum crossover point 4 Sure seems like there s a lot of footnotes in this manual For more details read our Technical Paper 104 Crossovers and Biamplification Most manufacturers list a recommended cross over frequency as part of the speaker s specifica tions Choosing an even higher crossover point will provide increased speaker reliability espe cially at h...

Page 22: ...For a 2500 Hz crossover the for mula yields a resistor with a value of 7200 2500 NOTE Use only resistors having a tolerance of five percent or better i e 5 2 etc 5 HEY Not another plug disguised as a foot note ok OK OKAY We ll make a deal with you Send us ten bucks and we ll send you the whole set of Tech Papers which includes our Technical Note 1005 Crossovers Modules And you won t have read anot...

Page 23: ...ve a grounding problem Check all power connections and cables Are all components in the system routed to a common ground point Does the head unit have a clean ground The factory wire harness doesn t count 2 If the condition still exists turn the system off and remove the top panel of the EQX refer to Figure 8 Locate the GROUND SELECTOR and switch it to a different position 3 Apply power and listen...

Page 24: ...ur source unit all the way up it is at its maxi mum S N ratio not to mention approach ing its highest voltage out Pipe this hot clean signal down the line and control it with the MVC just prior to the signal s entry into the amps The Epicen ter is our patented bass restoration solution that will dramati cally add impact or depth to your sound system so you can really feel the bass The ESP 2 restor...

Page 25: ...rrant all materials and workmanship on your EQX for Five Years from the date you bought it if installed by an authorized Audio Control dealer and will fix or replace it at our And Now A Word From Our Lawyers option during that time For you do it yourselfers we will warrant your EQX for One year Here are the conditions that make this warranty conditional 1 You have to fill out the warranty card and...

Page 26: ...e innards of the poor beasty c sadistic things This is the best mobile product we know how to manufacture but if you use it for the front bumper of your Baja bug and get it full of water and dirt things will go wrong Assuming you conform to numbers 1 through 5 and it isn t all that hard to do we get the option of deciding whether to fix your old unit or replace it with a new one Legalese Section T...

Page 27: ...Block Diagram Figure 10 Block diagram of the EQX Equalizer Crossover Level Matcher NOTE The Mono Output can be split with a Y cord if your amp needs dual mono inputs 25 Specifications ...

Page 28: ... Frequency Programmable 15 to 100 Hz Power Supply Transformer isolated switch mode Fuse Rating 2 amps Size 1 25 h x 8 9 w x 6 9 d Weight 3 lbs Balanced Input Yes Ground Isolation Jumpers Yes Country of origin USA AudioControl 1998 AudioControl is a division of Electronic Engineering and Manufacturing Inc All rights are reserved AudioControl Performance Match Making Good Stereo Sound Better EQX 4XS...

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